TPT July 2007

P lastic & C omposite T ube: P roducts & M anufacture

Anz_Schoder_Tube&Pipe 21.05.2007 10:09

IDENTIFICATION FOR PIPES,CABLES AND MORE

Thermoplastic extrusion lines for PP copolymer and PPHD pipes

Bandera, Italy, has supplied thermoplastic pipe extrusion lines to two German manufacturers. The complete extrusion line will be used by one of the manufacturers for the production of PP copolymer and PPHD pipes for use in flue ducting. This flue ducting is used for combustion and discharge fumes of the condensate deriving from gas boilers (in place of pipes made from stainless steel or other traditional materials). The output of this line is 210kg/h – significant considering that the line processes thin pipes, cut in minimum 500mm long bars. The line consists of a TR 65 AFTH L/D 1:32 extruder equipped with a thermo-regulated feed-throat. A four- component gravimetric dosing unit enables the exact repetition of process recipes and keeps pipe weight/metre constant, ensuring very narrow dimensional tolerances. Capable of producing pipes within a diameter range of 32-160mm, the line features a special vacuum calibrating system. It also has an ultrasound thickness control system equipped with eight fixed sensors to check the thickness of the pipes produced. The four belt haul-off unit is designed with an increased belt contact surface, to ensure that the thin pipes avoid any deformation. A planetary cut-off unit equipped with a knife, without any residual swarf and with automatically synchronised speed, allows the user to obtain minimum length pipe bars, even at the highest extrusion speed. The high-performance belling machine can form three sockets per time, on the basis of the different diameters, and includes a system for automatic ring seal fitting in the different sockets. An operator panel allows the control of process parameters. These include the gravimetric system, line flow, weight/metre, and extruder running parameters (screw velocity, temperatures, melt pressure etc).

› The line includes a vacuum calibrating system

It also calibrates tank parameters (vacuum control, water temperature etc), monitors the ultrasound thickness control system, and also synchronises line velocity with extrusion speed. It is equipped with a modem for tele-assistance.

Costruzioni Meccaniche Luigi Bandera SpA – Italy Fax : +39 0331 680 206 Email : lbandera@lbandera.com Website : www.luigibandera.com

Product launch for low noise push-fit piping system Designed to bring silent operations to internal drainage, Wavin Plastics has launched Osma SiTech – a new low noise push-fit soil system. An easy-fix push-fit system, SiTech is made from a mineral- filled polypropylene, which has the effect of increasing pipe density. Higher pipe density means that it only needs to be encased in 25mm of mineral wool wrap where contact between the pipe and the building structure cannot be avoided. Consequently, it cuts down on installation time, wrapping and tooling costs and can be installed by professional plumbers rather than specialist fitters. Specialist fitters are often required for cast iron and HDPE systems. OSMA SiTech has been independently tested for sound reduction performance and helps to achieve the higher acoustic performance standards in buildings as required by the UK’s Building Regulations Part E 2003. The OSMA SiTech system is available with acoustic fittings and pipe in the standard 110mm size.

Coding tools from Schoder code millions of parts worldwide and also now engrave copper and

steel pipes, plastic pipes, cables and more. Precisely incorporated pipe radii and rapidly exchangeable embossed segments make Schoder fast-running rollers flexible and cost- effective. For every pipe diameter and adapted for every material. So that your products develop their own identity and become unmistakably unique.

Request a quote or visit our website.

fi Bandera’s TR 65 AFT-H extruder

Schoder GmbH, Heinrich-Hertz-Strasse 19, D-63225 Langen Phone +49 (0) 61 03 59 71-0 · Fax +49 (0) 61 03 59 71-59 www.schoder.com · info@schoder.com

Wavin Plastics – UK Fax : +44 1249 443 286 Website : www.wavin.com

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J uly /A ugust 2007